Add a Contact Form to Pop Up! Plugin

Hi! I am trying to add a contact form to a Pop Up! plugin based Pop Up through the use of Gravity Forms shortcode. Trouble is, it doesn't seem to want to recognize the shortcode properly. When the popup shows up, the form is all jacked up showing strange code and won't let you click in the boxes. I have tried other form building plugins all with the same results.

Is there an easier way to get a contact form embedded in a popup using Pop Up?